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Ponceau S
SpectraBase Compound ID BLRpNiuyWA4
InChI InChI=1S/C22H16N4O13S4.4Na/c27-22-20(43(37,38)39)10-12-9-16(41(31,32)33)6-7-17(12)21(22)26-25-18-8-3-14(11-19(18)42(34,35)36)24-23-13-1-4-15(5-2-13)40(28,29)30;;;;/h1-11,27H,(H,28,29,30)(H,31,32,33)(H,34,35,36)(H,37,38,39);;;;/q;4*+1/p-4/b24-23+,26-25+;;;;
InChIKey KQHKSGRIBYJYFX-WNDMICSESA-J
Mol Weight 760.55207713 g/mol
Molecular Formula C22H12N4Na4O13S4
Exact Mass 759.887448 g/mol

Transmission Infrared (IR) Spectrum

Transmission Infrared (IR) Spectrum

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SpectraBase Spectrum ID 9Rq2jf7wy0g
Name Ponceau S
Source of Sample Sigma-Aldrich
Catalog Number 141194
CAS Registry Number 6226-79-5
Classification Schiff bases, azobenzenes, indicators & dyes
Copyright Copyright © 2018-2024 Sigma-Aldrich Co. LLC. - Database Compilation Copyright © 2018-2024 John Wiley & Sons, Inc. All Rights Reserved.
Formula C22H12N4Na4O13S4
InChI InChI=1S/C22H16N4O13S4.4Na/c27-22-20(43(37,38)39)10-12-9-16(41(31,32)33)6-7-17(12)21(22)26-25-18-8-3-14(11-19(18)42(34,35)36)24-23-13-1-4-15(5-2-13)40(28,29)30;;;;/h1-11,27H,(H,28,29,30)(H,31,32,33)(H,34,35,36)(H,37,38,39);;;;/q;4*+1/p-4/b24-23+,26-25+;;;;
InChIKey KQHKSGRIBYJYFX-WNDMICSESA-J
Solvent Nujol
Source of Spectrum Sigma-Aldrich Co. LLC.
Synonyms 3-Hydroxy-4-(2-sulfo-4-[4-sulfophenylazo]phenylazo)-2,7-naphthalenedisulfonic acid sodium salt
Technique Mull
Wiley ID SIAL_FTIR_1_1229